The install package also installs something called RewardsArcade as a browser add-on. This caused me to be unable to run scripts associated with Comcast's webmail, giving a Zimlet fatal error and unable to open any message. Disabled the add-on and all was OK, so used add/remove programs in Control Panel to delete RewardsArcade and then had a ton of registry errors that needed to be cleaned as well. May be a good player, but the install package sneak-ware turned me right off.